Polyols: Nneɛma a Wɔde Di Dwuma a Wɔde Di Dwuma wɔ Mfiridwuma ne Adetɔfo Ho
Nnwuma Titiriw a Wɔde Di Dwuma
Wɔ nnuruyɛ mu no, polyols yɛ nneɛma atitiriw a wɔde yɛ nneɛma a emu duru yɛ kɛse te sɛ polyesters, polyethers, ne polyurethanes. Sɛ nhwɛso no, wɔde ethylene glycol yɛ polyethylene terephthalate (PET), a wɔde di dwuma kɛse wɔ plastic nkotoku ne nhama mu. Wɔde polyethylene glycol (PEG) na ɛyɛ nneɛma ahorow a ɛma nsu no yɛ adwuma ne srade ahorow. Bio nso, polyols tumi yɛ adwuma sɛ nnuru a wɔde bɛpete nneɛma ahorow a ɛwɔ nkwa mu, na ama nneɛma a wɔyɛ no yiye no ayɛ kɛse.
Wɔ nnuruyɛ mu no, wɔde polyols di dwuma kɛse sɛ nnuru a wɔde siw yare ano, nneɛma a wɔde yɛ plastic, ne nea ɛma nsu yɛ hyew. Sɛ nhwɛso no, wɔtaa de propylene glycol ne glycerol di dwuma wɔ nnuru a wɔde twitwiw nipadua no mu, nsu a wɔnom, ne srade a wɔde yɛ nnuru no mu na ama nnuru no atumi afra na ayɛ den. Bio nso, wobetumi de polyols ayɛ nnuru a wɔahyɛ da ayi afi mu, na ahwɛ sɛnea nnuru no fi adi no so.
Wɔ nnuan adwumayɛ mu no, wɔde polyols di dwuma sɛ nneɛma a ɛma ɛyɛ dɛ, nea ɛma nsu yɛ hyew, ne nea ɛma ɛyɛ hyew. Sɛ nhwɛso no, wobetumi de glycerol ne polyethylene glycol adi dwuma wɔ nnɔkɔnnɔkɔwade, nneɛma a wɔato, ne anonne a wɔyɛ mu, na ama ayɛ dɛ na nsu a ɛwɔ mu no akɔ so atra hɔ. Bio nso, wobetumi de polyols adi dwuma de asiesie sɛnea aduan no te ne sɛnea ɛte wɔ ano, na ama ne nkwa nna akyɛ.
Wɔ nnuru a wɔde yɛ ahosiesie ne honam ani hwɛbea adwuma mu no, wɔde polyols di dwuma kɛse sɛ nneɛma a ɛma nsu yɛ hyew ne nea ɛma honam ani yɛ hyew. Sɛ nhwɛso no, propylene glycol ne glycerol tumi twetwe nsu, na ɛma honam ani ne ti nhwi kɔ so nya nsu. Bio nso, wobetumi de polyols adi dwuma wɔ nnuru a wɔde bɔ owia ho ban, nnuru a wɔde hyɛ nipadua mu, ne nnuru a wɔde hyɛ nipadua no mu, na ɛma wonya nsu ne srade.
Wɔ plastic adwumayɛ mu no, wɔde polyols di dwuma sɛ plasticizers de ma plastic tumi yɛ mmerɛw na wotumi yɛ ho adwuma. Sɛ nhwɛso no, wobetumi de glycerol ne polyethylene glycol adi dwuma sɛ plasticizers ama polyvinyl chloride (PVC), na ama sɛnea ɛyɛ mmerɛw na ɛtra hɔ kyɛ no atu mpɔn. Bio nso, wobetumi de polyols ayɛ plastic a ɛtumi sɛe, na ɛtew nneɛma a atwa yɛn ho ahyia so nkɛntɛnso so.
Wɔ nneɛma a wɔde kata so ne ink adwumayɛ mu no, wɔde polyols di dwuma sɛ nnuru a wɔde siw ano ne nea wɔde yɛ emulsifiers. Wobetumi apete resins ne pigments ahorow, na ama wɔanya su pa a ɛma ɛyɛ sini. Sɛ nhwɛso no, wobetumi de polyethylene glycol ayɛ nneɛma a wɔde kata so ne ink a wɔde nsu ayɛ, na ama wɔanya ano aduru a ɛnyɛ nea ɛmma nneɛma a atwa yɛn ho ahyia na ɛyɛ adwuma yiye.
Nsɛm a Wɔakyerɛkyerɛ mu
| Aguade no Edin | Polyester Polyols a Wɔde Yɛ Nneɛma | |||||||||
| Mmaeɛ | Nsu anaa ade a ɛyɛ den a enni kɔla kosi kɔkɔɔ a ɛyɛ hare a ɛyɛ nnam | |||||||||
| Molekyul Mu Mu duru | 500-5000 g/mol na ɛyɛ adwuma | |||||||||
| Boiling Point a Ɛwɔ Hɔ | >200 na ɛwɔ hɔ | |||||||||
| Ahotew | 98%,99.5% na ɛwɔ hɔ. | |||||||||
| Muduro | 1.10-1.15 na ɛwɔ hɔ | |||||||||
| HS Mmara no | 3907910000 na ɛwɔ hɔ | |||||||||
| Abisadeɛ | Polyurethane a wɔde kata so, ink ahorow; mpaboa ase, nsɔano, tae | |||||||||
Quality Control Krataa
| Aguade no Edin | Polyester Polyols a Wɔde Yɛ Nneɛma | ||||||
| ADEƐ | Susudua | Nsunsuansoɔ | |||||
| Chroma(APHA) a ɛwɔ nipadua no mu. | ≤30 na ɛwɔ hɔ | 11. Ɔde ne nsa kyerɛɛ ne so | |||||
| Nsuo a ɛyɛ den wɔ 25°C (mPas) . | 1100-1500 na ɛwɔ hɔ | 1296 mu | |||||
| Nsuo a Ɛwɔ Mu(%) . | ≤0.08 na ɛwɔ hɔ | 0.017 na ɛwɔ hɔ | |||||
| Hydroxyl Botae (mgKOH / g) . | 32.5-35.5 na ɛwɔ hɔ | 34.2 | |||||
| Acid Botae(meKOH/s) . | ≤0.08 na ɛwɔ hɔ | 0.029 na ɛwɔ hɔ | |||||
| pH Botae a Ɛwɔ Hɔ | 5.0-7.5 na ɛwɔ hɔ | 6.7 | |||||
| K+(mgkg) . | ≤5 na ɛwɔ hɔ | 1.0.0 | |||||
| Awie | Wɔafata | ||||||
Sɛ yɛbɛbɔ no mua a
Sɛ yɛbɛbɔ no mua a, polyols, sɛ nneɛma a ɛho hia a wɔde yɛ nnuru a wɔde yɛ nneɛma a nkwa wom no, di dwuma titiriw wɔ nnwuma pii mu. Ɛnyɛ sɛ wɔma nneɛma a wɔyɛ no yɛ adwuma yiye na ɛyɛ papa nko, na mmom wɔboa nnɛyi nnwuma nkɔso nso. Sɛ mfiridwuma mu nkɔso kɔ so a, anidaso a ɛwɔ hɔ sɛ wɔde polyol ahorow bedi dwuma no bɛtrɛw kɛse mpo.